Comment Re:Doesn't work (Score 4, Informative) 274
If your system currently has Windows 8 installed, then do this:
1) Insert the install media
2) Mouse to the bottom right
3) Select "Settings"
4) Click "Power"
5) While holding down shift, click "Restart"
6) Click "Use a device"
7) Click your install media
This is a little more involved than ideal, but it's got the huge benefit that it's consistent between systems rather than requiring you to use different hotkeys for different platforms.